Integrating functionalized graphene into perovskite solar cells boosts efficiency to 30.6%, lowers material/ production costs, enables use in low-light

https://www.geeky-gadgets.com/graphene-perovskite-solar-cell-efficiency/

"improved electron mobility/ minimized resistance... material costs up to 80% less (no precious metals)...  nano-film encapsulation guards against heat, moisture, UV degradation... reliable performance over long periods... use in: drones, satellites, portables, IoT powered by LEDs, rooftops... 98% recyclable...future: multi-junction cells, which could push efficiencies beyond 35% suggesting future where solar energy is not just an alternative, but the dominant, cost-effective standard for global energy needs"